BMW F80 M3, F82 M4 & F87 M2 Competition S55 Sports Cat Downpipes Ceramic Coated

The BMW F80 M3, F82 M4, and F87 M2 Competition S55 Ceramic Coated Sports Cat Downpipes are the road-legal upgrade for owners seeking more power, improved throttle response, and a refined exhaust note. Unlike decats that introduce excessive rasp, these Euro 5 200CEL sports catalysts free up the restriction of the OEM cats while keeping rasp to a minimum. The added ceramic coating helps reduce engine bay temperatures, lowering intake air temps and extending turbo life for enhanced reliability.

Crafted with a flow-optimised transition design, these downpipes improve exhaust gas flow for faster turbo spool, significant power gains, and a sharper driving experience. Manufactured to exacting standards with 100% TIG welds, OEM-spec 304 stainless steel flanges, and all original brackets and mounts, these downpipes are a true bolt-on solution that maintains OEM-style fitment.

Key Features:

• Euro 5 200CEL sports catalysts – reduce restriction while minimising S55 rasp

• Ceramic coating – reduces engine bay temperatures and helps control IAT

• Performance gains – faster turbo spool, improved throttle response, and increased power

• Durability and fitment – 100% TIG welded with OEM-spec 304 stainless steel flanges

• Flow-optimised design – smooth transitions for maximum efficiency

• Direct bolt-on installation – utilises factory-style brackets and mounts

• LHD/RHD compliant – designed for both left- and right-hand-drive models

Compatibility:

• BMW F80 M3 (2015–2018)

• BMW F82 M4 Coupe (2015–2020)

• BMW F83 M4 Convertible (2015–2020)

• BMW F87 M2 Competition (2018+, S55 engine only)

Important Notes:

• ECU tuning is required when fitting these downpipes. Please consult your tuner for correct calibration.

• Sports cats and decats are intended for off-road/motorsport use only. They are not road legal for MOT or emissions testing unless EC type-approved.

Unlock the full potential of your S55 engine with these Ceramic Coated Sports Cat Downpipes – the gold standard upgrade for BMW M3, M4, and M2 Competition owners who demand performance without compromise.

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.